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4782results about "Battery isolation" patented technology

Battery device, energy storage device and power utilization device

The invention provides a battery device, an energy storage device and a power utilization device. The battery device comprises a single battery and an electric control assembly electrically connected with the single battery, the electric control assembly comprises a circuit board, a shell and a covering structure, and a connector socket is arranged on the circuit board; a containing cavity is formed in the shell, the circuit board is installed in the containing cavity, and an opening for the connector socket to stretch out is formed in the shell. The covering structure is arranged on the shell and surrounds the connector socket, and the covering structure at least partially covers a gap between the connector socket and the side wall of the opening. By arranging the covering structure, installing the covering structure on the shell, supporting the covering structure through the shell, arranging the covering structure around the connector socket and enabling the covering structure to at least partially cover the gap between the connector socket and the side wall of the opening, the connector socket can be protected according to the protection grade requirement. And the gap between the connector socket and the side wall of the opening is shielded, reduced or closed, so that the electric control assembly meets the required protection grade requirement.
Owner:CONTEMPORARY AMPEREX TECHNOLOGY CO LTD

Motor vehicle traction battery arrangement

A motor vehicle traction battery arrangement includes two cooling plates respectively disposed in a horizontal plane and a high-voltage battery module. The lower and upper horizontal walls of which are cooled directly by the cooling plates and which encases a plurality of identical rectangular battery cells in a rigid battery module housing. The battery cells are all configured such that they are plate-like and elongated, are parallel to one another in vertical planes (y,z) and each includes two small-area vertical end walls, two large-area vertical side walls and two medium-area horizontal walls. On its end face, each battery cell includes an anodic connecting element and a cathodic connecting element. At least two similar cell stacks including a same plurality of battery cells are provided, and are stacked such that their battery cell side walls adjoin one another. The battery cell horizontal walls directly adjoin a cooled battery module horizontal wall.
Owner:DR ING H C F PORSCHE AG

Battery device and electric device

The utility model is suitable for the technical field of batteries, and provides a battery device and a power utilization device, the battery device comprises a box body, the box body comprises a first box body and a second box body, the first box body is a concrete structural member, and the first box body is provided with a mounting port communicated with a containing space; the battery monomers are accommodated in the accommodating space; the connector assembly comprises a connecting panel and a connector arranged on the connecting panel, the connecting panel is connected to the first box body and seals the mounting opening, one end of the connector extends to one side, deviating from the accommodating space, of the connecting panel, and the other end of the connector is electrically connected with the battery monomers; in the battery device provided by the embodiment of the invention, the first box body is a concrete structural member, so that the battery device can be used for energy supply and can also be used as a counterweight; the connector is integrated on the connecting panel, so that the connector is conveniently and stably mounted on the first box body, and the negative influence on the mounting of the connector caused by the fact that the first box body is a concrete structural member is reduced.
Owner:CONTEMPORARY AMPEREX TECHNOLOGY CO LTD

Highly integrated new energy automobile battery distribution unit

The utility model discloses a new energy automobile battery distribution unit which is free of wire harness, high in integration degree and compact, and comprises a box body with a long strip-shaped structure, the box body is provided with an assembly space extending along the length direction, and the upper part of the box body is provided with an opening corresponding to the assembly space; the support can be installed in the assembling space from the opening, and the support is provided with a cover plate capable of sealing the opening; a circuit board is arranged on the bracket, and is electrically connected with a heating loop, a control loop and a pre-charging loop; wherein the circuit board is provided with a wiring terminal, a pin of the electrical component is provided with a contact pin, and the electrical connection between the electrical component and the circuit board is realized through the combination of the contact pin and the wiring terminal. The utility model relates to the technical field of automobile parts.
Owner:JUNSHENG QUNYING (NANJING) NEW ENERGY VEHICLE SYST RES INST CO LTD +1

Energy storage battery box based on light high-performance concrete and preparation method of energy storage battery box

The invention discloses an energy storage battery box based on light high-performance concrete and a preparation method of the energy storage battery box, and belongs to the technical field of energy storage equipment. The energy storage battery box provided by the invention comprises a light high-performance concrete base body and a metal net embedded in the light high-performance concrete base body, according to the lightweight high-performance concrete matrix, a multi-component gel system composed of ordinary Portland cement, a shrinkage reducing agent, a solid waste-based geopolymer and steel slag micro powder is adopted, and solid waste-based artificial sand, fibers and a solid waste-based filling material in a specific proportion are compounded, so that a lightweight high-strength intrinsically fireproof concrete material is successfully prepared; meanwhile, a large amount of industrial solid wastes such as the desulfurized gypsum, the red mud, the steel slag tailings and the fly ash are utilized, efficient resource utilization is achieved, the raw material cost and full-life-cycle carbon emission are remarkably reduced, and the production efficiency is high.
Owner:SHANDONG UNIV +1

Immersed liquid cooling energy storage PACK box

The invention relates to the technical field of energy storage batteries, and provides an immersed liquid cooling energy storage PACK box. The battery compartment is placed by arranging the outer frame, so that the stability of the battery compartment is ensured; the main box body of the battery cabin is formed by bending, so that the forming difficulty of a single stamping part is reduced, and the integral sealing performance is improved by performing aluminum brazing connection on the main box body and the corner fittings; according to the liquid cooling plate, efficient heat management and low-flow-resistance operation are achieved through three-inlet and one-outlet flow channel layout and optimal combination of confluence of three parallel inlet flow channels and one outlet flow channel; the battery cells of the battery module are completely immersed in the insulating cooling liquid, and the insulating cooling liquid adopts mineral oil or fluorinated liquid, so that through the composite cooling design of heat dissipation of the static immersion liquid and the bottom liquid cooling plate, the problem of liquid circulation existing in traditional immersion type cooling is effectively solved, the auxiliary heat conduction function of the immersed insulating cooling liquid is fully exerted, and the service life of the battery module is prolonged. And in cooperation with the liquid cooling plate, the system temperature difference is successfully controlled at an excellent level of 3 DEG C, and the overall heat dissipation efficiency is remarkably improved.
Owner:芜湖汇展新能源科技有限公司 +1

Battery device and electric device

The utility model is applicable to the technical field of batteries, and provides a battery device and a power utilization device, the battery device comprises: a box body, the box body comprises a first box body and a second box body, the first box body is a concrete structural member, the first box body is provided with an accommodating space with an opening at one end, and the second box body is connected to the first box body and covers the opening of the accommodating space; a battery cell accommodated in the accommodation space; the sealing structure is arranged between the first box body and the second box body, and the two ends of the sealing structure abut against the first box body and the second box body in a sealed mode respectively; in the battery device provided by the embodiment of the invention, the first box body is a concrete structural member, and the weight of the first box body is increased, so that the battery device can be used for energy supply and can also be used as a counterweight; meanwhile, the sealing structure is arranged between the first box body and the second box body, so that the sealing performance of the connecting part of the first box body and the second box body is improved, and the negative influence on the sealing performance of the battery device caused by the fact that the first box body is a concrete structural part is reduced.
Owner:CONTEMPORARY AMPEREX TECHNOLOGY CO LTD

Hydrogen fuel cell unmanned aerial vehicle based on airflow temperature control

The invention relates to the field of unmanned aerial vehicles, in particular to a hydrogen fuel cell unmanned aerial vehicle based on airflow temperature control, which comprises a rack, and a thermal insulation cabin for accommodating a hydrogen fuel cell is arranged on the rack; a first window is arranged on the heat preservation cabin; a temperature control mechanism is arranged on the machine frame and controls the first window to be opened and closed according to the temperature in the heat preservation cabin. The temperature control mechanism comprises an induction cabin and a first push frame; the induction cabin is arranged on the heat preservation cabin, a first piston is arranged in an inner cavity of the induction cabin in a sliding mode, and the induction cabin is filled with gas. The two ends of the first push frame are hinged to the push block and the first connecting rod respectively, the push block is connected with the first piston through a rod piece, and a hinge base hinged to the first connecting rod is arranged on the first window. The function of automatically switching the heat preservation state is achieved, when the temperature of the hydrogen fuel cell is high, the first window is opened through the temperature control mechanism, external air is introduced, and redundant heat is taken away through airflow. The problem that the temperature adjusting capacity of the unmanned aerial vehicle cannot meet the temperature change intensity is solved.
Owner:XIE HYDROGEN (SHENZHEN) DRONE TECHNOLOGY CO LTD

Safety-enhanced battery modules and battery packs

A battery module according to the present invention includes a cell assembly including a plurality of stacked battery cells; a module case that houses the cell assembly in an internal space; and a cover unit coupled to an outer surface of the module case and having a barrier layer disposed between the module case and the cover unit to block the entry and exit of flames and reduce heat transfer, wherein the barrier layer may be foamed and coupled to the cover unit, and may be provided integrally with the cover unit.
Owner:LG ENERGY SOLUTION LTD

New energy automobile power battery immersion type temperature control heat dissipation and thermal runaway prevention technology

The invention relates to the technical field of immersed temperature control and thermal runaway prevention of a power battery of a new energy automobile. The technical problems to be solved are clearly reflected that the non-uniform heat dissipation and spontaneous combustion of the power battery are two technical problems of a new energy automobile, and the technology provided by the invention can enable the heat dissipation of the power battery to be good and prevent spontaneous combustion. The technical scheme for solving the problem is characterized in that a buffer material is used for protecting the bottom of a battery pack, a circulating temperature control system is filled with fluorinated liquid, elements such as battery cells in the battery pack are soaked in the fluorinated liquid, and according to the temperature requirement of the battery cells, the fluorinated liquid exchanges heat with a heat pump system, a heater and a driving motor, so that the battery pack is heated. The fluorinated liquid is recycled to raise or lower the temperature of elements such as the battery pack. When the battery cell is abnormally high in temperature or thermal runaway, the battery cell is extinguished and cooled by means of quick discharge, water injection into the battery pack and the like. The device is used for heating or circularly cooling elements such as a power battery and preventing spontaneous combustion of a power battery pack.
Owner:HAINAN AISHANG BUOYANT TECHNOLOGY CO LTD

Control method for flame retardant system of energy storage battery pack, and energy storage system

A control method for a flame retardant system of an energy storage battery pack, comprising: for each battery module, when a fire occurs in the battery module, on the basis of sensor data provided by a sensor module corresponding to the battery module, determining the fire development stage of the battery module and, on the basis of the fire development stage, controlling the initial degree of opening of a gas release module corresponding to the battery module, so as to activate flame retardation; during the flame retardation, on the basis of the sensor data provided by the sensor module, updating the fire development stage of the battery module and, on the basis of the sensor data provided by the sensor module and the degree of opening of the gas release module, calculating a pressure relief rate of the battery module; and, if the current pressure relief rate falls outside of a target rate range corresponding to the current fire development stage, on the basis of the current sensor data, adjusting the degree of opening of the gas release module.
Owner:GUANGDONG POWER GRID CO LTD +1

Battery pack and vehicle including same

A battery pack according to the present disclosure may include: a plurality of battery modules; and a pack case having an accommodation space formed to accommodate the plurality of battery modules, wherein the pack case may be configured such that at least one surface of the pack case is deformed when internal pressure increases due to venting gas and flame generated due to a thermal event in the battery module.
Owner:LG ENERGY SOLUTION LTD

Battery pack

Disclosed is a battery pack in which a fastening recess is provided on a side surface of a vertical frame and a CMU is fastened to the fastening recess, thereby securing rigidity of the vertical frame and maximizing an internal space of the battery pack.
Owner:SK ON CO LTD

New energy battery cooler

The invention relates to a new energy battery cooler, and belongs to the technical field of new energy vehicle battery cooling. The new energy battery cooler comprises a battery base, a controller, a protective shell and a battery pack, the controller and the protective shell are fixedly mounted at the top of the battery base, and the battery pack is arranged in the protective shell; the cooling flow guide mechanism comprises a contact shell, a cooling assembly and a heat conduction assembly, and the contact shell is fixedly mounted on the outer side of the battery pack; a cooling flow guide mechanism is arranged on the outer side of a battery pack, a passive self-adaptive flow guide function which a traditional liquid cooling structure does not have is achieved, a shape memory alloy memory valve plate and a phase change micro-grid composite layer are introduced into a cooling flow channel, when the temperature of the battery pack locally rises, a phase change layer absorbs heat and diffuses, meanwhile, the memory valve plate deforms to expand the section of the flow channel, and the flow channel is cooled. And the cooling liquid automatically increases flow and enhances heat exchange for a hot spot area, the local cooling capacity can be dynamically adjusted, and the temperature equalization performance is remarkably improved.
Owner:GUANGDONG HENGTAO NEW ENERGY TECHNOLOGY CO LTD

Energy storage arrangement with individually suspendable energy storage modules

Energy storage arrangement for vehicle: first energy storage module comprising a first surface and a second surface, the first and second surfaces being arranged transversally offset from each other, and a first frame connecting member arranged on the first surface, second energy storage module comprising first surface and second surface, the first and second surfaces arranged transversally offset from each other, and a first frame connecting member arranged on the first surface, wherein the first and second energy storage modules are arranged side-by-side with each other forming geometric gap in a longitudinal direction, and protection plate extending across the geometric gap and connected to the second surface of the first energy storage module and to second surface of second energy storage module, wherein the first and second energy storage modules are individually suspendable to frame arrangement of the vehicle by respective first frame connecting members.
Owner:VOLVO TRUCK CORP

Explosion-proof valve, battery device, energy storage device and electric device

The embodiments of the present application belong to the technical field of batteries, and provide an explosion-proof valve, a battery device, an energy storage device and an electric device. The battery device comprises a case, at least one battery cell assembly accommodated in the case, and an explosion-proof valve mounted on the case. The explosion-proof valve comprises a valve body in which a pressure relief channel and a pressure relief port are formed; a valve bonnet mounted on the valve body; a sealing film which is mounted on the valve body and is used for separating the pressure relief channel from the pressure relief port, and which comprises a first section, a second section and a sealing section that are connected in sequence, wherein the first section is connected to the valve body, a cavity in communication with the pressure relief port is formed between the second section and the valve body, and the sealing section is used for sealing the valve body; a piston disposed in the valve body, wherein the sealing section is sandwiched between the piston and the valve body; and an elastic member, one end of the elastic member abutting against the valve bonnet, and the other end of the elastic member pressing the sealing section towards the valve body by means of pressing the piston.
Owner:CONTEMPORARY AMPEREX TECHNOLOGY CO LTD

Base of ship battery box for battery replacement and battery replacement ship

The invention provides a base of a ship battery box for battery replacement and a battery replacement ship, and belongs to the technical field of ship battery replacement. The ship battery box base comprises a main body frame, a waterproof mechanism and a connecting mechanism, the main body frame is used for supporting a seated container type ship battery box, and a plurality of guide mechanisms and buffer assemblies are arranged on the main body frame; the ship battery box falls into a correct position under the guidance of the guide mechanism, and the ship battery box is buffered by the buffer mechanism when falling into the position and is limited by the guide mechanism after falling into the position; the connecting mechanism comprises a water connecting mechanism and an electric connecting mechanism; the waterproof mechanism comprises a waterproof door structure which can be opened and closed in a sliding manner; the waterproof mechanism is arranged above the connecting mechanism, the waterproof mechanism is opened during ship battery replacement, and the waterproof mechanism is closed after battery replacement is completed.
Owner:AULTON NEW ENERGY AUTOMOBILE TECHNOLOGY CO LTD

Battery module having multiple fire safety features, and applications thereof

Provided is a battery module and battery rack having enhanced fire safety features. The battery module includes a swelling / pressure sensor that detects swelling of a battery cell. An output signal of the sensor is used to halt operation of a battery rack / battery system containing the battery module and prevent charging and discharging of the battery module. In an embodiment, the battery module uses an AC-to-AC power supply to provide AC frequency power for balancing battery cells of the battery module. In an embodiment, the battery rack includes an internal water fire suppression system that provides battery cooling in the event of a battery cell fire to prevent the spread and / or reigniting of the fire.
Owner:VLTRU TECHNOLOGIES INC

Battery device and electric device

The invention discloses a battery device and a power utilization device. The battery device comprises a box body; a battery cell assembly accommodated in the case; the heat exchange assembly is contained in the box body; the heat exchange assembly comprises a heat exchange main body, the heat exchange main body comprises a plurality of heat exchange runners extending in the first direction, the heat exchange main body is provided with a limiting part, and at least part of the limiting part is arranged in the heat exchange runners in a protruding mode; the flow collecting structures are arranged at the two ends, located in the first direction, of the heat exchange body, each flow collecting structure comprises a plugging piece, an adapter and a flow collecting piece, the plugging pieces are plugged in the at least one heat exchange runner and are in limiting fit with the limiting parts, the adapter is formed on the heat exchange body, and a flow collecting cavity is formed in each flow collecting piece; the flow collecting piece is in sealing fit with and connected with the heat exchange body through the adapting piece, and the flow collecting piece is provided with a communicating opening communicating with the flow collecting cavity. According to the invention, the installation difficulty among the heat exchange main body, the current collector and the adapter can be reduced, the connection reliability is improved, and the reliability of the battery device is improved.
Owner:CONTEMPORARY AMPEREX TECHNOLOGY CO LTD

Immersed type energy storage battery fire extinguishing system

The invention provides an immersed energy storage battery fire extinguishing system which comprises a battery pack, a liquid storage tank, a high-pressure storage tank and a controller, the liquid storage tank is connected with a liquid inlet and a liquid outlet of the battery pack through pipelines, cooling liquid is stored in the liquid storage tank, and the battery pack is further connected with the high-pressure storage tank through a pipeline; a proportional valve is mounted on a pipeline for connecting the liquid storage tank with a liquid inlet of the battery pack, a temperature sensor is arranged in the battery pack, and a gas booster pump is mounted on a pipeline for connecting the high-pressure storage tank with the battery pack; the battery pack, the proportional valve, the temperature sensor and the gas booster pump are all electrically connected with the controller. The fire extinguishing system for the immersed energy storage battery can effectively prevent chemical reaction in the battery, quickly and efficiently prevent thermal runaway from continuing and spreading, and improves the use safety of the energy storage battery.
Owner:SHUANGLIANG ECO ENERGY SYST CO LTD

Battery pack

Disclosed is a battery pack. The battery pack according to an embodiment of the present disclosure may include: a base plate; a battery module installed on the base plate and having a first venting hole on its upper surface; a venting cover coupled to the upper surface of the battery module; a pack cover configured to cover the venting cover; and an elastic member provided between the venting cover and the pack cover.
Owner:LG ENERGY SOLUTION LTD

A new energy automobile battery pack support

The application relates to the technical field of new energy batteries, in particular to a new energy automobile battery pack support which comprises a U-shaped first mounting rack and a second mounting rack, the first mounting rack and the second mounting rack are distributed in an upper-lower interval, the two side walls of the second mounting rack are tightly combined with the two side walls of the first mounting rack, an air inlet space is left between the first mounting rack and the second mounting rack, the bottom of the first mounting rack is provided with an air inlet through hole for the upward flow of gas in the air inlet space; an air guide assembly is installed in the inside of the air inlet space and is used for conveying heat dissipation gas to the inside of the first mounting rack; the air guide assembly comprises a plurality of air guide plates which are arranged in parallel and are inclined; the air guide plates are used for guiding the air in the inside of the air inlet space into the inside of the first mounting rack from the air inlet through hole. In the application, the continuously working battery pack can be cooled more quickly, and the battery temperature is prevented from being too high.
Owner:JIANGSU ZHONGCHENG SPECIAL VEHICLE CO LTD

Cooling and fire extinguishing device for lithium battery of new energy automobile in underground parking space

The invention discloses an underground parking space new energy automobile lithium battery cooling and fire extinguishing device which comprises a double-control module, and the double-control module comprises a main control module A and a main control module B which are used for regularly sending detection signals between the main control module A and the main control module B, detecting faults, exchanging sensor data and synchronously storing the data in a local database; the multi-mode sensing layer is arranged at a parking space and used for detecting whether a vehicle is parked or not and whether the temperature is too high or not, and the multi-mode sensing layer is connected with the main control module A and the main control module B; and the spraying assembly is located at the parking space and connected with the fire fighting pipeline, an electromagnetic valve is arranged at the joint, and the electromagnetic valve is connected with the main control module A and the main control module B. The system has the effects of rapid intervention, accurate cooling, remote early warning closed loop and the like, meanwhile, the fault rate of the system is reduced to 0.0002 times per year by adopting the double main control modules, and the false alarm rate is only 0.1 times per thousand of vehicle days and is reduced by 87% compared with a single-point threshold value detection mode.
Owner:WUXI INSTITUTE OF TECHNOLOGY

Wearable and lightweight portable power case

Systems, methods, and articles for a wearable and lightweight portable power case are disclosed. The portable power case is comprised of a cylindrical housing, at least two battery elements connected to a printed circuit board (PCB), and at least one separating barrier between the at least two batteries and the PCB. The portable power case is operable to supply power to an amplifier, a radio, a wearable battery, a mobile phone, a tablet, a portable satellite dish and / or any other power consuming device. The portable power case is operable to be charged using solar panels, vehicle batteries, AC adapters, non-rechargeable batteries, and / or generators.
Owner:LAT ENTERPRISES INC

Battery monomer, battery and electric device

The invention discloses a battery monomer, a battery and a power utilization device, the battery monomer comprises a shell and an electrode assembly, a cavity is formed in the shell, the shell is provided with a first wall, and the first wall is provided with an accommodating part; the electrode assembly is arranged in the cavity and comprises an electrode body and a conductive part connected with the electrode body, and at least part of the conductive part is arranged in the containing part. According to the battery monomer, the accommodating part is formed on the first wall, and the conductive part of the motor assembly can be partially or completely accommodated in the accommodating part, so that the height size of the conductive part between the first wall and the electrode main body can be reduced, the arrangement space of the electrode main body is increased, and the space utilization rate and the energy density of the battery monomer are improved.
Owner:CONTEMPORARY AMPEREX TECHNOLOGY CO LTD

Battery and electric apparatus

A battery (100) and an electric apparatus. The battery (100) comprises a case (20), battery cells (10), a power distribution box (30), and sealing members (40). The case (20) comprises a case wall (21), and through holes (22) are formed in the case wall (21). The battery cells (10) are accommodated in the case (20). The power distribution box (30) comprises a housing (31) and adapter bases (32), the housing (31) is arranged on the outer side of the case wall (21) and is connected to the case wall (21), the adapter bases (32) are connected to the housing (31), and at least part of each of the adapter bases (32) is accommodated in the corresponding through hole (22). The sealing members (40) are arranged between the case wall (21) and the housing (31) and surround the through holes (22). According to the provided battery (100), the adapter bases (32) are directly connected to the housing (31), and the power distribution box (30) provided with the adapter bases (32) is connected to the case (20), such that the connection strength between the adapter bases (32) and the power distribution box (30) is satisfied, the probability of contaminants and the like entering the power distribution box (30) via the adapter bases (32) is reduced, the sealing performance of the power distribution box (30) and the adapter bases (32) is improved, and the assembly degree of the power distribution box (30) and the case (20) is also simplified, thereby improving the assembly efficiency of the battery (100).
Owner:CONTEMPORARY AMPEREX TECHNOLOGY CO LTD

Short-cut carbon fiber composite-high strength steel hybrid bionic structure battery box and its integrated forming method

Provided are a short-cut carbon fiber composite (SCFC)-high strength steel (HSS) hybrid bionic structure battery box and its integrated forming method. A SCFC-HSS hybrid bionic structure lower box body includes a lower box framework made of high strength steel and a SCFC lower box matrix; and an upper box body and the lower box are connected by bolts to form a complete SCFC-HSS hybrid bionic structure battery box. A high strength steel lower box framework scheme is designed based on the principle of bionics, then welding and surface treatment are carried out to obtain a bionic lower box framework structure, and the bionic lower box framework structure is placed in a mold for integrated injection molding using a SCFC matrix material.
Owner:JILIN UNIVERSITY

Battery pack and vehicle including the same

Discussed is a battery pack that includes a battery module, and a pack housing configured to accommodate the battery module The pack housing may include a lower case to accommodate the battery module, an upper case coupled to the lower case to cover an upper opening of the lower case, a gasket provided on an interface between the lower case and the upper case, and an insulating member disposed between the battery module and the gasket.
Owner:LG ENERGY SOLUTION LTD

Battery pack box body and battery pack

The utility model provides a battery pack box body and a battery pack. The battery pack box body comprises an upper box body and a lower box body which are connected with each other to jointly define a containing space; the lower box body comprises a bottom plate, and the bottom plate is provided with a first bottom plate side wall in the first direction parallel to the plate face. The upper box body comprises a top plate and a first side plate, the first end of the first side plate is connected with the top plate, and the second end of the first side plate corresponds to the side wall of the first bottom plate; the battery pack box body further comprises an outer assembly, the outer assembly is connected to the lower box body so that the second end can be clamped between the outer assembly and the side wall of the first bottom plate, and the outer assembly covers at least part of the area of the second end. According to the battery pack box body and the battery pack provided by the invention, under the clamping action of the outer assembly on the second end, the sealing structure is formed between the second end and the side wall of the first bottom plate, and the sealing surface is arranged in the vertical direction, so that the energy density of the battery pack is favorably improved. And at least partial area of the second end is covered and protected by the outer assembly, so that the overall sealing reliability of the battery pack box body is improved.
Owner:ENVISION DYNAMICS TECH (JIANGSU) CO LTD +1